8.03528

Diacetyl

for synthesis

• Sinónimos: Diacetyl, 2,3-Butanedione, 2,3-Butadione, Dimethyldiketon, Dimethylglyoxal
• Fórmula empírica (notación de Hill): C₄H₆O₂
• Número de CAS: 431-03-8
• Peso molecular: 86.09
• Número MDL: MFCD00008756
• Código UNSPSC: 12352115
• Número índice de la CE: 207-069-8
• NACRES: NA.22

Propiedades

• presión de vapor: 52 hPa ( 20 °C)
• Nivel de calidad: 200
• Análisis: ≥97.0% (GC)
• formulario: liquid
• temp. de autoignición: 365 °C
• potencia: 1580 mg/kg LD₅₀, oral (Rat); >5000 mg/kg LD₅₀, skin (Rabbit)
• lim. expl.: 2.4-13.0 % (v/v)
• bp: 89-90 °C/1013 hPa
• mp: -2 °C
• temperatura de transición: flash point 7 °C
• densidad: 0.99 g/cm³ at 20 °C
• temp. de almacenamiento: 2-8°C
• InChI: 1S/C4H6O2/c1-3(5)4(2)6/h1-2H3
• Clave InChI: QSJXEFYPDANLFS-UHFFFAOYSA-N

Descripción

Aplicación

• Photosensitizer in Synthesis: Discusses diacetyl′s role as a non-toxic, readily available "traceless" photosensitizer in metal-free cross-dehydrogenative coupling reactions, highlighting its versatility and economic benefits (Huang et al., 2019).
• Detection in E-cigarettes: Investigates diacetyl as a precursor to hazardous emissions in e-cigarette liquids, providing insights into the health risks associated with its use in vaping products (Vas, Porter & McAdam, 2019).
• Antimicrobial Activity: Explores the synergistic antimicrobial properties of diacetyl combined with reuterin against foodborne pathogens, emphasizing its potential for enhancing food safety (Langa et al., 2014).
• Coffee Industry Exposure: Details exposure levels to diacetyl and other volatile organic compounds in coffee roasting and café settings, discussing occupational safety measures and health implications (LeBouf et al., 2020).

Nota de análisis

Assay (GC, area%): ≥ 97.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.984 - 0.987
Identity (IR): passes test

Información de seguridad

• Pictogramas: GHS02,GHS06,GHS08,GHS05
• Palabra de señalización: Danger
• Frases de peligro: H225,H302,H315,H317,H318,H331,H373
• Consejos de prudencia: P210 - P280 - P301 + P312 - P304 + P340 + P311 - P305 + P351 + P338 - P314
• Clasificaciones de peligro: Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation
• Órganos de actuación: Respiratory system
• Código de clase de almacenamiento: 3 - Flammable liquids
• Clase de riesgo para el agua (WGK): WGK 2
• Punto de inflamabilidad (°F): 44.6 °F - closed cup
• Punto de inflamabilidad (°C): 7 °C - closed cup